是考查祈使句还是非谓语动词

请看下面这道题，是考查祈使句还是考查非谓语动词？

_______ the road round to the right and you’ll find his house.

A. Follow                            B. Following

C. To follow                        D. Followed

【分析】正确答案选A。根据句中的连词and 可推知它是一个并列句。假若将此题改为下面这样，则答案为B：

_______ the road round to the right, you’ll find his house.

A. Follow                            B. Following

C. To follow                        D. Followed

但是，若改成下面一题这样，则答案为C(不定式短语表目的)：

_______ the road round to the right, the blind man asked a boy to guide him.

A. Follow                            B. Following

C. To follow                        D. Followed

请做以下试题，答案均选A，都是因为句中的并列连词 and（填空句为祈使句）：

(1) _______ to the top of the hill, and you can see the whole of the town.

A. Get                                B. To get

C. Getting                           D. Having got

(2) ______ the milk and set a good example to the other children.

A. Drink                             B. To drink

C. Drinking                        D. Having drinking

(3) ______ me, and then try to copy what I do.

A. Watch                           B. Watching

C. To watch                       D. Have watching

(4) _____ through this book and tell me what you think of it.

A. Look                             B. Looking

C. To look                         D. Having looked

(5) _____ it with me and I’ll see what I can do.

A. Leave                             B. Leaving

C. If you leave                    D. When left

有时不用连词连接句子，而用破折号，情况也是一样(答案均选A)。如：

(6) _____ down the radio — the baby’s asleep in the next room.

A. Turn                             B. Turning

C. to turn                          D. To have turned

(7) _____ some of this juice — perhaps you will like it.

A. Try                              B. Trying

C. To try                          D. To have tried

以下各题也应选A，是因为句中的从属连词 when, before, until 等（填空句为祈使句）：

(8) ______ him enough time to get home before you telephone.

A. Give                             B. To give

C. Giving                          D. Given

(9) ______ left when you get to the end of the street.

A. Keep                            B. Keeping

C. To keep                       D. Kept

(10) ______ your hand over your mouth when you cough.

A. Put                              B. Putting

C. To put                         D. To be putting